Restore parts of time machine backup

I currently have a MacBook Pro that I'm using at work, but it has now become so slow that I wish to do a reinstall of the OS. It has a recovery partition that offers such a reinstall. I do not want all the content back onto my computer after the reinstall, but I want to keep my time machine backup in case I forgot some important files.

Is there an option so that I some time in the future could be able to get files from an old TM backup?